#include <stdio.h>
void fun (int x,int y );
int main()
{ int x=5,y=3; 
fun(x,y);
printf("%d,%d\n",x,y);
return 0;
}
void fun (int x,int y )
{ x=x+y;
y=x-y;
x=x-y;
printf("%d,%d\n",x,y); 
}